What causes a fuse to blow on a car?

What causes a fuse to blow on a car?

When the amperage pulled through the circuit becomes too excessive the fuse will overheat and blow protecting the circuit or accessory from fire. This condition can occur when a particular accessory wears out or when electrical power connects to the ground of the car for example the body, frame, drive train or interior metal parts.

Where are the fuses located in a car?

Most cars are designed with multiple fuse panels which are usually located under the hood, in the interior of the car or in the trunk. Known as a PDC (power distribution center) or fuse and relay panel which can be identified by having a black plastic cover over the top or side of the panel.

When do you turn on the fan relay?

When the correct parameters are met, a temperature switch or the computer will activate the relay, which will allow power to the fans. The relay will usually be activated once it is detected that the vehicle’s temperature approaches excessively high temperatures.

What to do when no power is detected at a fuse?

If no power is detected at the fuse or panel (either side of the all fuses) use a wiring schematic to trace the power source, usually a main power relay, maxi-fuse or fusible link has failed. Watch the videos! Questions? Our team of certified mechanics is ready to answer your questions for free.

Where is the fuse box on a Pontiac Grand Am?

Cigar lighter (power outlet) fuse in the Pontiac Grand Am is the fuse #34 in the Engine compartment fuse box. There are two fuse blocks, which are located on the right and left in the dashboard, behind the covers. How to check the fuses? How to replace a blown fuse? Why do car fuses blow?

Where are the fuse panels on a Pontiac Montana?

Here you will find fuse box diagrams of Pontiac Montana 1998, 1999, 2000, 2001, 2002, 2003 and 2004, get information about the location of the fuse panels inside the car, and learn about the assignment of each fuse (fuse layout) and relay.

Where are the fuses located on a car?

It is located on the right side of the dashboard, behind the cover. How to check the fuses? How to replace a blown fuse? Why do car fuses blow?